Ghaziabad Development Authority [GDA] — Security concern due to neighbors building

Address:

plot no 48, shakti khand 2 indirapuram ghaziabad UP

In plot no 48, shakti khand 2 indirapuram, Builder has build a new building and facing the window and balcony to my building.
From its balcony and window there is security threat, From the balcony and window they can come to my building and keep watching to our flors and flats.
After asking so many time the builder is not ready to take action againt it.
Please look into the matter.